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4.1 光缆用的主要材料与性能光缆制造用的材料决定着成品光缆的传输性能、机械物理性能、以及安装使用性能.作为光缆用的主要材料有光纤、二次被复材料、增强材料、填充复合物、缓冲与包带材料以及护套材料等.4.1.1 光纤光纤是光缆中的传输媒介,它的性能决定着光缆的传输性能以及使用性能,其机械性能也影响光缆的制造、安装与使用寿命.对通信用的多模渐变型折射率分布光纤及单模光纤的几何特性、光学特性以及传输特性的要求分别在CCITT的G.651及G.652建议中作了明确规定,已在本书第三章中作了介绍.
4.1 The main materials and properties of optical fiber cable used in the manufacture of materials determines the transmission performance of finished optical cable, mechanical and physical properties, as well as installation and use of performance as the optical fiber cable used in the main materials are optical fiber, the second complex materials, reinforced materials, Materials, cushioning and wrapping materials and sheathing materials, etc. 4.1.1.1 Fiber Optic fiber is the transmission medium in fiber optic cable, and its performance determines the transmission performance and service performance of fiber optic cable. Its mechanical properties also affect the manufacture, installation and use of fiber optic cable Lifetime The requirements for the geometric, optical and transmission characteristics of multimode graded index profile optical fibers and single mode fibers for communications are clearly defined in the CCITT Recommendations G.651 and G.652, respectively Chapter III of the book made a presentation.